Slitting and rewinding machine.



J. A. CAMERON & G. B. BIRCH.

SLITTING AND REWINDING MACHINE.

APPLICATION FILED MAR. 5. 1914.

1, 1 4, 1 46 D Patented July 27, 19 1 5.

3 SHEETS-SHEET 1.

. WITNESSES: llVl/E/VTOHJ 01W? I W ATTORNEY J. A. CAMERON & G. B. BIRCH.

SL-ITTING AND REWINDING MACHINE.

APPLICATION FILED MAR. 5, l9l4.

1.148346. Patented July 27,1915.

3 SHEETS-SHEET 2.

WITNESSES: INVENTORY m a 1 ATTORNEY J. A. CAMERON & G, B. BIRCH.

SUTTING AND REWINDING MACHINE. APPLICATION FILED MAR. 5. 1914.

LMJ Q Patented July 27, 1915.

3 SHEETS-SHEET 3.

WITNESSES. IlVI/E/VTORS sa'rns P JAMES A. CAMERON AND GUSTAF BIRGERBIRCH, OF NEW YORK, N. Y., ASSIGNORS T0 CAMERON MACHINE COMPANY, OFBROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Application filed March 5, 1914. Serial No. 822,610.

To all whom it may concern Be it known that we, J AMES A. CAMERON andGUSTAF B. BIRCH, both citizens of the United States, and residents ofthe borough of Brooklyn, in the county of Kings, city and State of NewYork, have invented certain new and useful Improvements in Slitting andRewinding Machines, of which the following is a specification.

In that type of slitting and rewinding machines in which the material isrewound into a plurality of coils on the same shaft, the rewindingdevice has, at times, a tendency to distort the paper or other materiallaterally. This distortion may be caused by the pull longitudinally onthe web tending to crowd the edges of the slitted product together inthat class of center rewind machines in which the coils are suspendedwithout any surface supporting means.

In the surface rewind or other type where the paper is rewound undercompression there is at times a tendency to compress the paper or othermaterial unduly and to such an. extent that the paper is spread therebyincreasing the width of the web or 0151:3116 several sections formed outof the we In the ordinary size of machine and when acting on certainmaterial, the spreading action is practically negligible, but in verywide machines and when acting on a certain class of material, thisaction may become considerable enough to cause an interweaving of thematerial in adjacent coils when rewound.

The main object of this invention is to I eliminate the disadvantageousresults due to this interweaving, and the invention accordingly consistsin means for slitting the web into sections at a plurality of closelyadj a cent points between each section, so as to produce a narrowintermediate strip, together with means for rewinding the slittedsections, preferably under compression, side by side upon a commonshaft.

Other features of construction will appear as the specificationproceeds.

In the accompanying drawings the inven-- tion is embodied in a concreteand preferred form, but changes of construction may be made withoutdeparting from the legitimate and intended scope of the invention as setforth in the appended claims.

In said drawings,

Figure 1 is a vertical sectional view through a machine embodying theinvention. Fig. 2 is an end elevation, partly broken away and in sectionof the machine shown in Fig. 1. Fig. 3 is a side elevation of the doublecutter member mounted in a single holder employed in the machine. Fig.4: is a plan view of Fig. 3. Fig. 5 is a side view of the cutter removedfrom its holder. Figs. 6 and 7 are detail views of the stripper employedin the machine.

Similar characters of reference indicate corresponding parts in theseveral views.

The invention as here disclosed is embodied in a machine of theso-called surface rewind type of a well known construction in which theweb 8 passes from the roll 9 over the guides 10, to the backing roll 11where it is severed by the cutters 12, after which the slitted sectionsare all rewound side by side into coils 15 on a mandrel or shaft 13common to all the coils by means of the backing roll 11 and rewindingroll 14:.

16 is a pressure roller bearing with equal force on all the coils in awell known man'- ner.

The backing roll 11 is preferably provided with a glass hardenedsurface, and harder than the blunt cutter members 12, so that the latterwill not indent or cut into the surface of the backing roll.

By the above means the web is severed without being distorted out of theplane of severance or laterally and is rewound with an equal pull on allthe web sections laterally at the point of severance.

It is unnecessary to efiter into a detailed descriptionof theorganization of the machinev and of the various instrumentalitieswhereby motion is imparted to the different elements comprising themachine, since these features are well known in the art, and referencewill only be had to such parts of the machine which comprise the novelfeatures thereof.

16' indicate a series of holders which rest in grooves on the spacingmember 17 carried by the bar 18. Each holder 16 is provided at its endwith a spring 19 which bears against the underside of the abutment 20and is held thereagainst by means of the screw 21. The abutment 20 isadjustable in the slot 22 of the framework, and when adjusted to theproper position can be secured in place by the screw 23. By adjust-Patenteol July 27-, 1915. I

The holder 16 is provided with the cheeks 24 having slots 25 in which isseated the arbor 26 held against rotation by means of the ribs 27engaging in suitable grooves in the arbor. The cutter member 12 isprovided with a central aperture 28 having a ball bearing 29 and isrotatably mounted on the arbor 26 between the cheeks 24:. The cuttermember 12 may be in one or two parts and is provided with two cutting orcleaving faces, or with a double cutting or cleaving face 30, whichcoact with the backing member 11. By this means the web is severed at aplurality of closely adjacent points between each section, therebyproducing a narrow intermediate strip. This intermediate strip may berewound with. the web sections, in which case the .coils have twochances to be separated when knocked apart. Or the said intermediatestrips may be removed from the machine without being rewound. Anysuitable device may be utilized for this purpose, but preferably Iemploy stripper members engaging, or closely adjacent to, the surface ofthe backing member 11. As here shown these stripper members comprise asupport 31 adapted to be clamped to the transverse bar 32 of the machineby means of the set screw 33. The support is provided with a forwardlyextending stripper finger 34 which bears against the member 11 in theplane of the cutting member 12, and with a rearwardly extending guide 35located below the stripper finger and separated therefrom by a space orslot 36 through which the intermediate strip passes and is therebyconveyed out of the machine.

What is claimed, is:

1. A slitting and rewinding machine comprising: means for slitting a webinto sections by severing the web at a pluralityof closely adjacentpoints between each pair of sections so as to produce relatively widesections and a relatively narrow intermediate strip, and means forrewinding the slitted sections side by side upon a common shaft.

2. A slitting and rewinding machine comprising: means for slitting a webinto sections without distorting it out of the plane of severance bysevering the web at a plurality of closely adjacent points between eachpair of sections so as to produce relatively wide sections and narrowintermediate strips, and means for rewinding the slitted sections sideby side upon a common shaft.

3. A slitting and rewinding machine comprising: means for slitting a webinto sections by severing the web at a plurality of closely adjacentpoints between each pair of tions by severing theweb at a pluralit ofsections, so as to produce relatively wide sections and a narrowintermediate strip, means for rewinding the slitted sections side byside upon a common shaft, and means for preventing the intermediatestrip from being rewound with the slitted sections.

4. A slitting and rewinding machine comprising: means for slitting a webinto sections without distorting it out of the plane of severance bysevering the web at a plurality of closely adjacent points between eachpair of sections so as to produce relatively wide sections and arelatively narrow intermediate strip, means for rewinding the slittedsection's side by side upon a common shaft, and means for preventing theintermediate strip from being rewound with the slitted sections.

5. A slitting and rewinding machine comprising: means for slitting a webinto sections by severing the web at a plurality of closely adjacentpoints between each pair of sections so as to produce relatively widesections and a relatively narrow intermediate strip, and means forrewinding the slitted sections under compression side by side upon acommon shaft.

6. A slitting and rewinding machine comprising: means for slitting a webinto sections without distorting it out of the plane of severance bysevering the web at a plurality of closely adjacent points between eachpair of sections so as to produce relatively wide sections and arelatively narrow intermediate strip, and means for rewinding theslitted sections under compression side by side upon a common shaft.

7. A slitting and rewinding machine comprising: means for slitting a webinto secclosely adjacent points between each palr of sections so as toproduce relatively wide sec tions and a relatively narrow intermediatestrip, means for rewindin the slitted sections under compression slde byside upon a common shaft, and means for *preventing the intermediatestrip from being rewound with the slitted sections.

8. A slitting and rewinding machine comprising: means for slitting a webinto sections without distorting it out of the plane of severance bysevering the web at a plurality of closely adjacent points between eachpair of sections so as to produce relatively wide sections andrelatively narrow intermediate strips, means for rewinding the slittedsections under compression side by side upon a common shaft, and meansfor preventing the intermediate strips from being rewound with theslitted sections.

9. In a slitting machine, a plurality of members having cutting surfacesthereon arranged in groups of two, a movable holder mounting each groupof said cutting memagainst each holder,,and means with which saidcutting surfaces coact.

10. In a cutter member, a slitting machine, a plurality of movableholders, cutting surfaces mounted in each holder in groups of two,tension means acting against each holder for holding said cuttingsurfaces in engagement with said member, and means for independentlyadjusting the tension exerted upon each holder.

11. In a slitting and rewinding machine, rewinding means, a backingroll, a cutting member having a plurality of cutting surfaces actingagainst said backing roll, a stripper finger coacting with said backingroll in the plane of the cuttingmember, a guide extending in a directionopposite from that of the stripper finger and located underneath thesame and spaced therefrom whereby the intermediate strip between thesections will be conveyed out of the machine, and means for rewindingthe sections.

12. In a slitting machine, a stripper member comprising a forwardlyextending stripper finger and rearwardly extending guide member locatedunderneath the stripper finger and spaced therefrom.

13. In combination, a cutter member, a cutting member adapted toengagewith the cutter member and having a plurality of cutting surfacesformed thereon, means for feeding a web between said cutter member andsaid cutting surfaces, and a stripper finger engaging with the cuttermember and arranged in the path of the strip severed between the cuttingsurfaces of the cutting member for directingsaid strip in another pathfrom the remaining severed sections.

14. In a machine, a cutter member, a cutting member adapted to engagewith the cutter member and having a plurality of cutting surfaces formedthereon, means for tween the cutting surfaces of the cutting member fordirecting said strip in another path from the remaining severedsections, and guide means arranged to coact with said stripper fingerand receiving said strip therefrom for directing the same out of themachine.

15. A slitting and rewinding machine comprising: a cutting member havinga plurality of cutting surfaces for slitting a web into sections bysevering the web at a plurality of closely adjacent points between eachpair of sections so as to produce a relatively narrow intermediatestripbetween each section, and means for rewinding the slitted sectionsunder compression side by side upon a common shaft.

16. A slitting and rewinding machine comprising: a cutting member havinga plurality of cutting surfaces for slitting a web into sections bysevering a web at a plurality of closely adjacent points between eachpair of sections so as to produce a relatively narrow intermediate stripbetween each section, means for rewinding the slitted sections undercompression side by side upon a common shaft in the plane of their linesof severance, and means for preventing the intermediate strip from beingrewound with said slitted sections.

Signed at the borough of Brooklyn, in the county of Kings, city andState of New York this 25th day of February A. D. 1914.

JAMES A. CAMERON. GUSTAF BIRGER BIRCH. Witnesses:

FRANK C. RIssEL'r, S. N. PEGKHAM.

